Non-freezing fire-plug.



o. P. PAULU'S.

NON-FREEZING FIRE PLUG.

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Witwen@ C. F. PAULUS.

NON-PRBEZING FIRE PLUG.

APPLIOATION FILED MAR. zo, 191s.

1,105,040. Patented July 2s, 1914n 3 SHEETS-BHBET 2.

C. F. PAULUS.

.NON-FREBZING FIRE PLUG.

APPLICATION FILED MAR, zo, 191s.

1,105,040. l Patented July 28,1914

3 SHEETS-SHVEET 3.

Swann/Coz @Atome/1A CHARLES F. PAUL'US, 0F BETHLEHEM, PENNSYLVANIA.

NON-FREEZING FIRE-PLUG.

Specification of Letters Patent.

Patented July 28, 1914.

Application led March 20, 1913. Serial No. 755,643.

To all 107mm it may concern.

Be it known that I, CHARLES F. PAULUS, citizen ofI the United States, residing at Bethlehem, in the county of Northampton and State of Pennsylvania, have invented certain new and useful Improvements in Non-Freezing F ire-Plugs, of which the following is a specification.

This invention relates to improvements in water distribution and more specifically to non-freezing hydrants and plugs for the distribution of water.

, The object of my invention is to provide an economical heating device for fire hydrants which may be readily turned on or off as the temperature of the weather might require, simple in construction, arrangement, and operation, easilydnstalled on any plug or hydrant, durable, and neat in appearance.

With the above and other objects in view, my invention consists. in the combination, arrangement, and details of construction disclosed in the drawings and specification, and then, more particularly pointed out in the appended claim.

Referring to the drawings, wherein similar reference characters designate similar parts throughout the respective views, Figs ure l is a vertical sectional elevation of the casing and radiators showing their relative position with respect to the plug or hydrant, the insulator being sectioned to show the position of the coils around the ues, and also the switch connection for regulating the heat current. Fig. 2 is a side elevation of the casing with covers unlocked and ready for use. Fig. 3 is a cross-sectional view of the interior arrangement of the iues taken lon a line mof Fig. Q. Fig. 4 is a fragmental detail view of electric coils showing preferred mode of connection with feed wire. Fig. 5 is a perspective of the plates forming water-shed. Fig. G is an elevation of a key for opening the covers.

Referring to the drawings which are merely illustrative of my invention, l designates the outer casing of my device while 2 and 2 are the right and left hand covers thereof respectively, said covers being hinged at 4 and la so arranged as to open outwardly and downwardly to expose the plug 8 unen! cumbered when in use, such outward and downwardmovement being regulated, however, by chains 6 and Ga attached respectively to the plug at 8 and to the cover at 9. The opening movement of the two halves of the cover is facilitated by spring members l0 and l()a bolted to casing at 5 and 52L so that the free end of said springs will extend upwardly and outwardly so as to engage the cover halves with an outward pressure thus forcing open the cover when unlocked. When the covers are in closed position around the upper part of the plug, they are locked in position by a spring catch 12 which engages the downwardly projecting member 13. Said covers are unlocked by a key l1 when inserted in key hole 7. Each half of the cover is provided at its bottom with a flange 14 which fits snugly around the top of casing 1, thus making a tight closure. There is also a flange 14a upon one of the halves of the cover member, said flange extending along the inner sides and top thereof, so that when closed the two cover halves are more tightly sealed.

In order that said casing l may be free from any water that may drip into it, I have provided a water tight seal l5 to fit between tl'le plug and casing, said seal being formed preferably of three metal plates which slope downwardly and outwardly toward its periphery, thus causing any water to iow to and out of drain pipe 16. Beneath the said plates l5 is my radiator system consisting of annular lines 17 spaced apart around said plug and preferably extending vertically along the length thereof to a` point beneath the ground. Each of said flues is held in alining position by a bolt 19 secured short of its upper end and fastened to the casing, and at the bottom by a bracket member 20 similarly secured. The heat coils i8 are wrapped alternately about the flues, one being right-hand wrapped and the next one beinfr left-hand wra ed and so on with D a each flue until all theflues are in position ternately wrapped. Said lues are insulated by wrapping with a non-conductor, preferably asbestos, 26 to withstand and radiate the heat generated by the electric coils. German silver wire is preferably used to conduct the current. The feed wire may be joined to the coils 'in any of the approved methods, though preferably by attaching each of the coils 18 to a main feed wire 2T'.

A filler of concrete 2l is placed at the bottom between the casing l and the plug- 3, and a three-piece clamp member 2Q forms a bushing around the plug and is secured to the inner side of the casing l, by bolts 22a passing therethrough and through a finger integral with an arm extending outwardly from the bushing portion of said clamp member. rThe concrete filler and the said clamp member near the top of the casingtends to hold the same rigid and iXedly spaced apart from the inclosed plug.

rl`he current is conducted to the electric heat coils forming the radiator by leading a feed wire 27 to a switch 23, conveniently lo` cated on a nearby pole, thence by a conduit pipe 2l extending beneath the ground to the radiator casing l, to which it is joined at Q5 by the usual coupling, whence said feed wire is attached to the coils 18.

Ilaving now described and pointed out the new and useful features of my invention, I do not limit myself to the shape of certain parts where the shape is not essential, such as Vto the shape of the casing, length and shape of the flues, etc., nor do I restrict myself to the exact details of construction shown and described, but mean and intend to claim all equivalents and variations thereof not departing in principle from my invention and falling within the purview of the appended claim.

I claim as my invention:

In a non-freezing fire plug, the combination of a casing spaced apart around said plug, a cover adapted to inclose the top of said casing and said plug, a partition mounted between said casing and said plug beneath said cover, said partition havinff an angular slope downwardly and outwardly from said plug to said casing, a drain pipe through said casing above said partition, means :t5

whereby said casing may be fixed solidly at its base in spaced apart relation with respect to said plug, a plurality of electric flue coils spaced apart from each other and around said plug between said casing and A. 

